Step-by-step solutions to hundreds of algebra 2 questions

Recent questions in Algebra II

Anish Buchanan 2020-11-08

Write the first six terms of the arithmetic sequence $a_{n} = a_{n - 1} + 4, a_{1} = - 7$

coexpennan 2020-11-08

Often new technology spreads exponentially. Between 1995 and 2005, each year the number of Internet domain hosts was 1.43 times the number of hosts in the preceding year. In 1995, the number of hosts was 8.2 million.
(a) Explain why the number of hosts is an exponential function of time. The number of hosts grows by a factor of -----? each year, this is an exponential function because the number is growing by ------? decreasing constant increasing multiples.
(b) Find a formula for the exponential function that gives the number N of hosts, in millions, as a function of the time t in years since 1995.
(c) According to this model, in what year did the number of hosts reach 49 million?

Jaden Easton 2020-11-08

A home is valued at $236,500 in 2012. In 2017, the home is worth $305,700. Assume the homes

remolatg 2020-11-08

Replace the 880-lb force acting at point A by a force-couple system at
(a) point O
and
(b) point B.

fortdefruitI 2020-11-08

Decide if the equation represents exponential growth or decay. Explain your answer. $y = 2^{x} / 3^{x}$

Ernstfalld 2020-11-08

To write:
The radical expression using exponent $y^{- \frac{5}{3}}$

Wierzycaz 2020-11-08

Find the slope and y intercept of the line in the given equation $y = - \frac{7}{10} x - 2$

FobelloE 2020-11-08

Solve for x $1200 {(1.03)}^{x} = 800 {(1.08)}^{x}$

Cheyanne Leigh 2020-11-08

The following table lists the reported number of cases of infants born in the United States with HIV in recent years because their mother was infected.
Source:
Centers for Disease Control and Prevention.
$\begin{array}{cc} Year & Cases \\ 1995 & 295 \\ 1997 & 166 \\ 1999 & 109 \\ 2001 & 115 \\ 2003 & 94 \\ 2005 & 107 \\ 2007 & 79 \end{array}$
a) Plot the data on a graphing calculator, letting $t = 0$ correspond to the year 1995.
b) Using the regression feature on your calculator, find a quadratic, a cubic, and an exponential function that models this data.
c) Plot the three functions with the data on the same coordinate axes. Which function or functions best capture the behavior of the data over the years plotted?
d) Find the number of cases predicted by all three functions for 20152015. Which of these are realistic? Explain.

Dillard 2020-11-08

Solve the following systems of equations by using the addition (elimination) method.
x+2y=2 and -3x-6y=-6

opatovaL 2020-11-08

Use the linear factorization theorem to construct a polynomial function with the given condition.
n=3 with real coefficients, zeros = -4, 2+3i.

zi2lalZ 2020-11-08

Determine whether the ordered pair is a solution to the given system of linear equations.
3.(-1,7) ${\begin{matrix} 4 x + y = 3 \\ 2 x - 3 = y \end{matrix}}$

Braxton Pugh 2020-11-08

Directions: Define 2 variables, write 2 equations, and solve the system of equations.
The North Ridgeville Football team played a game against Avon last week. A total of 125 points were scored by both teams. The teams scored a total of 22 six-point touchdowns and three-point field goals. In additon, there were 4 two-point safeties and 12 one-point kids scored. How many touchdowns and field goals were scored by the teams during the game?

Cheyanne Leigh 2020-11-08

Suppose that a nonhomogeneous system with 10 linear equations in 8 unknowns has a solution with 2 free variables. Is it possible to change some constants on the equations’ right hand side to make the new system inconsistent?

CheemnCatelvew 2020-11-07

Find the sum of the first n terms of the arithmetic sequence. $- 9 + (- 12) + (- 15) + . . .$ (to 10 terms) Find the sum of the first 100 terms of an arithmetic sequence with 15th term of 86 and first term of 2.

chillywilly12a 2020-11-07

Why isn’t factoring $x^{4} - 81 a s (x^{2} + 9) (x^{2} - 9)$ a complete factorization?

Anonym 2020-11-07

What are equivalent equations ?

Jaya Legge 2020-11-07

Use Exponential Models in Applications
Elise invests $4500 in an account that compounds interest monthly and earns 6%. How long will it take for her money to double?

Tolnaio 2020-11-07

Answer true or false to each of the following statements and explain your answers. Polynomial regression equations are useful for modeling more complex curvature in regression equations than can be handled by using the method of transformations.

glasskerfu 2020-11-06

Determine whether the statement makes sense or does not make sense, and explain your reasoning : By modeling attitudes of college freshmen from 1969 through 2013, I can make precise predictions about the attitudes of the freshman class of 2040.

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